Librecad Ortho Mode Page

Beyond the basic toggle, LibreCAD includes specific tools that function as specialized versions of Ortho mode:

Marco leaned back. The shed was now a monument of orthogonal precision. The windows aligned. The door frame sat square. The roof pitch would shed rain without a single diagonal drip.

He pulled the line to exactly 15'-0". Click. Perfect. North wall. Click. Vertical. East wall. Horizontal. South wall. Back to the origin.

The most efficient method for experienced users is pressing F8 to toggle Orthogonal restriction. librecad ortho mode

Every time he tried to draw the western wall—a straight line exactly 15 feet horizontal from the corner—his hand betrayed him. The line would start true, then at the last millimeter, his mouse would twitch. The line would go diagonal. Just a hair. Just enough to make the entire structure look like a parallelogram designed by a drunk beaver.

His colleague, Lena, a landscape architect who used expensive commercial software, glanced over. "Still fighting with the free thing? Just buy the real CAD."

if (isOrthoModeActive)

Four clicks. Twelve seconds. A perfect rectangle.

If the toolbar is visible (usually on the left or top), look for the icon featuring two perpendicular lines. Advanced Techniques and "Hidden" Ortho Features

"Not again," he muttered, hitting Undo for the seventeenth time. Beyond the basic toggle, LibreCAD includes specific tools

In the mouse move event handler (while drawing):

That night, Marco dreamed in perpendicular lines. And they were beautiful.

While Ortho mode is active, you can start a line, move your mouse in the desired direction, and type a value (e.g., 50 ) into the command line to create a line exactly 50 units long in that direction. The door frame sat square